package com.zzptc.x.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class LoginFilter implements Filter{

	public void destroy() {
	
		
	}

	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		HttpServletRequest req=(HttpServletRequest)request;
		HttpServletResponse res=(HttpServletResponse)response;
		
		HttpSession session=req.getSession();
		if(session.getAttribute("loginsucc")!=null){
			chain.doFilter(request, response);
		}else{
			res.sendRedirect("../fail.jsp");
		}
	
	}

	public void init(FilterConfig filterConfig) throws ServletException {
	
	}

}
